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SBB FINAL EXAM (ACTUAL EXAM) WITH 200+ QUESTIONS WITH VERY ELABORATED ANSWERS CORRECTRY WELL ORGANIZED LATEST 2024 – 2025 ALREADY GRADED A+ $12.99
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SBB FINAL EXAM (ACTUAL EXAM) WITH
200+ QUESTIONS WITH VERY ELABORATED
ANSWERS CORRECTRY WELL ORGANIZED
LATEST 2024 – 2025 ALREADY GRADED A+
Which of the following antigens is associated with poly-agglutinability?
K antigen
Kx antigen
T antigen
V antigen - ANSWERS-Correct: T antigen
O - A2 - B - A2B - A1 - A1B - Bombay
Listed above are several blood groups in a particular order.
Which symbol should replace the dash?
,and
What order do these represent?
> and the expression of H antigen
< and the expression of H antigen
> and the frequency of blood groups
< and the frequency of blood groups
none of the above - ANSWERS-> and the expression of H antigen
Which of the following is a mechanism of an elution procedure?
Disruption of structural complementarity of antigen and antibody
Enhancement of structural complementarity of antigen and antibody
Exchange of one immunoglobulin class for another
Denaturation of membrane epitopes by chemical means - ANSWERS-Correct:
Disruption of structural complementarity of antigen and antibody
Elution removes antibody molecules from the red cell membrane either by
disrupting the antigen or changing conditions to favor dissociation of antibody
from antigen. Many techniques are available, and no single method is best in all
situations. If an eluate prepared by one technique is unsatisfactory, it may be
helpful to prepare another eluate utilizing a different technique.The red cells used
for any elution technique must be thoroughly washed to remove all antibody
,except that bound to the cells. Six washes with large volumes of saline is usually
sufficient. Adequacy of washing is tested by examining saline from the last wash
for the presence of antibody by the indirect antiglobulin(IAT) procedure. If
antibody is detectable in the last wash, there could be enough unbound antibody
molecules still present so that results obtained on testing the eluate are not valid.
This assumes the possiblemixture of alloantibody and autoantibody.As soon as
the elution is completed, remove the supernatant fluid and place it into a
separate tube to avoid reattachment of antibody to
Which of the following donors is eligible to donate?
A. Wife of a patient with active Hepatitis ; they are living together; last sexual
contact was 18 months ago.
B. Former prostitute; married with no high-risk behavior for 10 years
C. Male who had sex with another male 11 months ago
D. Male jailed for 7 days, 15 months ago - ANSWERS-Correct: Male jailed for 7
days, 15 months ago
AABB standards (32nd ed):
Incarceration for more than 72 consecutive hours defers the donor for 12 months
from the date of release. Because this donor was released 15 months ago, he is
eligible.
A person living with an individual with active Hepatitis is deferred. There would
also be deferral for 12 months from the date of the last sexual contact. Once the
infection is no longer present, the donor is eligible 12 months from the date the
spouse's infection is deemed as no longer present.
, Potential donors who have taken money or drugs for sex since 1977 are
indefinitely deferred.
Males who have had sexual relations with other males are deferred for 12 months
after the last date of sexual contact. (recently changed due to COVID-19, however
ASCP is currently using pre-pandemic donor requirements!)
A Native American woman who is group A Positive delivered a group O Rh
positive infant. The baby was noted to be jaundiced 6 hours after birth and had a
3+ DAT. The mother's antibody screen had been negative before delivery and an
eluate prepared from the infant's cells was also non-reactive with a routine
antibody ID panel, A1 and B cells.
Which of the following cells should be tested to possibly assist in identification of
the antibody?
A. Doa
B. Dia
C. Cha
D, Coa - ANSWERS-Correct: Dia
The clues here are as follows: You want to look for an antibody that is capable of
causing a significant HDFN.
Anti-Cha is an antibody with high titer, low avidity (HTLA) characteristics. The
antigen is not an integral part of the RBC membrane but rather is formed in the
fluids and adsorbs onto the RBC. The antibody has weak reactivity and a low
binding ability. The antigens are not fully developed at birth and the antibody is
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